:root {
    --primary: #f2a900;
    --dark: #111;
    --muted: #666;
    --bg: #fff;
    --card-bg: #fbfbfb;
    --radius: 8px;
}

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    color: var(--dark);
    background: var(--bg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    margin: 0;
    padding: 0;
}

.container {
    width: 85%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Navigation Bar */
#mainNav {
    background-color: #000;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.brand {
    color: #fff;
    text-decoration: none;
    font-size: 1.2em;
    display: flex;
    align-items: center;
}

.brand img {
    margin-right: 10px;
}

.nav-links {
    list-style-type: none;
    display: flex;
    gap: 30px;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

/* Hero Header */
.hero {
    background: linear-gradient(180deg, rgba(242,169,0,0.12), rgba(255,255,255,0));
    padding: 100px 0 50px;
    text-align: center;
}

.hero h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.hero .lead {
    font-size: 1.2em;
    margin-bottom: 10px;
}

/* Sections */
.section {
    padding: 28px 0;
}

.section.light {
    background: #fafafa;
    border-top: 1px solid rgba(0,0,0,0.02);
    border-bottom: 1px solid rgba(0,0,0,0.02);
}

h2 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark);
}

/* Agenda */
.agenda-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
}

.agenda-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    background: var(--card-bg);
    padding: 12px;
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

.agenda-item time {
    font-weight: 700;
    color: var(--primary);
    min-width: 110px;
}

.agenda-item .muted {
    color: var(--muted);
    font-size: 0.95rem;
}

/* Technical Reports */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
    margin-top: 12px;
}

.report-card {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.04);
    padding: 12px;
    border-radius: 8px;
}

.report-card h3 {
    font-size: 1rem;
    margin-bottom: 6px;
}

.report-card a {
    color: var(--dark);
    text-decoration: none;
}

.report-card a:hover {
    text-decoration: underline;
    color: var(--primary);
}

.report-card .meta {
    color: var(--muted);
    font-size: 0.92rem;
    margin-bottom: 8px;
}

/* Organizers */
.organizers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 18px;
    margin-top: 14px;
    align-items: start;
}

.organizer {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.04);
    padding: 12px;
    border-radius: 10px;
    text-align: center;
}

.organizer-img {
    width: 120px;
    height: 120px;
    margin: 0 auto;  /* centers the image container */
    overflow: hidden;
    border-radius: 8px;
}

.organizer-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.organizer figcaption {
    margin-top: 8px;
    font-size: 0.95rem;
}

/* Footer */
.site-footer {
    background-color: #000;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

/* Utility Classes */
.small {
    font-size: 0.95rem;
}

.muted {
    color: var(--muted);
}

a.disabled {
    pointer-events: none;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2em;
    }
    
    .hero .lead {
        font-size: 1em;
    }
}